Finding the Fourth Proportional to 105,854.88, 146,079.16 and 58,109.04

Step by Step Solution

1. Step 1: Write the proportion equation
   105,854.88 : 146,079.16 = 58,109.04 : x
2. Step 2: Convert to fraction form
   105,854.88/146,079.16 = 58,109.04/x
3. Step 3: Cross multiply
   105,854.88x = 146,079.16 × 58,109.04
4. Step 4: Simplify right side
   105,854.88x = 8,488,519,751.61
5. Step 5: Solve for x
   x = 8,488,519,751.61/105,854.88
6. Step 6: Final answer
   x = 80,190.16